Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 84
FMI: 20
Description: Vehicle Speed Sensor Drifted High Error – VSS Signal Not Plausible
Troubleshooting:
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Corroded pins.
4. Faulty VSS and tone wheel.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer) CPC
PID: N/A
SPN: 84
FMI: 21
Description: Vehicle Speed Sensor Erratic
Troubleshooting:
DESCRIPTION:
Vehicle speed sensor erratic.
MONITORED PARAMETER:
Vehicle speed sensor (VSS).
TYPICAL ENABLING CONDITIONS:
Rpm greater than 1500, torque demand on.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
10 seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Rpm greater than 1500, torque demand on.
POSSIBLE CAUSES:
1. CPC needs reprogramming.
2. VSS parameters needs correct configuration.
3. Bent pins.
4. Spread pins.
5. Corroded pins.
6. Faulty wiring.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)MCM
PID: N/A
SPN: 84
FMI: 21
Description: Vehicle Speed Sensor Failure
Troubleshooting:
DESCRIPTION:
Vehicle speed sensor rationality.
MONITORED PARAMETER:
Vehicle speed sensor (VSS).
TYPICAL ENABLING CONDITIONS:
Rpm greater than 1500, torque demand on.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
10 seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Rpm greater than 1500, torque demand on.
POSSIBLE CAUSES:
1. CPC needs reprogramming.
2. Faulty wiring.
3. Bent pins.
4. Spread pins.
5. Corroded pins.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 91
FMI: 0
Description: Accelerator Pedal Circuit Failed High
Troubleshooting:
DESCRIPTION:
Pedal sensor supply signal short or open ground circuit.
MONITORED PARAMETER:
Pedal position
TYPICAL ENABLING CONDITIONS:
Always on.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key Cycle – ignition ON.
POSSIBLE CAUSES:
1. Damaged pins.
2. Bent pins.
3. Spread pins.
4. Corroded pins.
5. Unseated pins.
6. Faulty wiring.
7. Faulty accelerator pedal.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 91
FMI: 2
Description: Accelerator Pedal Learn Error
Troubleshooting:
DESCRIPTION:
Pedal sensor supply signal erratic.
MONITORED PARAMETER:
Pedal position
TYPICAL ENABLING CONDITIONS:
Always on.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
CEL
ENGINE REACTION:
None
VERIFICATION:
Key Cycle – ignition ON.
POSSIBLE CAUSES:
1. Faulty wiring.
2. Faulty accelerator pedal.
3. CPC needs reprogramming.